Add support for including dotted and .min.js files explicitly in include

[riknoll]

Fixes #9472

This PR lets you explicitly include dotted files/folders and .min.js files in your "include" globs. Previously, these files were always ignored unless listed in the "files" property of tsconfig.json. By "explicitly included", I mean that either the glob has no wildcards or the substrings . or .min.js are explicitly part of the wildcard. Here are some examples for how each wildcard behaves when used within "include" globs:

• The glob */* will not match any dotted files/folders, but the glob .*/.* will
• The glob ?git/* will not match the .git directory but .git/* will
• The glob *.js will not match any .min.js files but the glob *.min.js will
• The glob ** will never match any dotted directories

In "exclude" globs, wildcards still match dotted files/folders and .min.js files implicitly. This is necessary to preserve the behavior of being able to exclude entire directories using globs like node_modules/**/*

[rbuckton]

Can you use component.charCodeAt(0) === CharacterCodes.asterisk here? It would be inefficient to look at every character of a component when we only care about the first one.

[riknoll]

Ha, yep. Good catch!

[rbuckton]

This still introduces a closure. Another approach would be:

// at :924
const singleAsteriskRegexFragmentForFiles = "([^./]*(\\.(?!min\\.js$))?)*";
const singleAsteriskRegexFragmentForOther = "[^/]*";

// at :938
const singleAsteriskRegexFragment = usage === "files" ? singleAsteriskRegexFragmentForFiles : singleAsteriskRegexFragmentForOther;
const replaceWildcardCharacter = usage === "files" ? replaceWildcardCharacterForFiles : replaceWildcardCharacterForOther;

// at :1000
subpattern += component.replace(reservedCharacterPattern, replaceWildcardCharacter); // uses local from :939

// at :1025
function replaceWildcardCharacterForFiles(match: string) {
    return replaceWildcardCharacter(match, singleAsteriskRegexFragmentForFiles);
}

function replaceWildcardCharacterForOther(match: string) {
    return replaceWildcardCharacter(match, singleAsteriskRegexFragmentForOther);
}

function replaceWildcardCharacter(match: string, singleAsteriskRegexFragment: string) {
    return match === "*" ? singleAsteriskRegexFragment : match === "?" ? "[^/]" : "\\" + match; 
}

With this, no new closures are introduced.

[riknoll]

Done

[rbuckton]

👍